Re: [Sheflug] sed Help

["Chris J" <xxxxx [at] xxxxxxxxxxxxxxxx>]

And Lo! The Great Prophet " Alex Hudson" uttered these words of wisdom...
> On Wed, Aug 28, 2002 at 09:30:48AM +0100, Chris J wrote:
>>
>>         awk '{ print "whatever/"$0 }' infile > outfile
>
> I think that qualifies for useless use of awk :P
>

If you're using a ridiculously powerful tool like perl to do simple
substitution, I can use awk :P (i.e., they were probably all useless uses of
perl :-) ).

> If we're talking arcana, then:
>
> 	yes '/mnt/home/aland' | paste -f -d'/' - oldfile.py > newfile.py

Doesn't work - I've tried it already :) Well it does work, but because yes
prints out ad infinitum, paste will continue ad infinitum, so you need to
pipe the result through "head -n `wc -l < /etc/passwd`".

Btw, what does the "-f" switch in paste do? I don't have that in my version
of paste (here at work on a RH 6.2 box) - later version of the utils? In
which case I'll have to wait 'til I get home to look. It might make that
pipe through head redundant?

>
> Muhahah :) I bet that one's the speed champ!
>

Not sure - see the simple while loop I've posted elsewhere :)

Alternatively you could do "vi infile" then type "0,$ s/^/whatever/"
followed by ":wq".

Gotta love UNIX ;)

Chris...

-- 
\ Chris Johnson                 \
 \ cej [at] nightwolf.org.uk          \
  \ http://cej.nightwolf.org.uk/  ~-----------------------------------+
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